Facebook integration work, but not on my iPhone

Question

I have a little question about my Facebook integration in my App. In my Simulator, it's all perfect, but if I am testing the app at my normal IPhone (5) the Facebook post window don't open. I get no error or warnings but nothing happens.

Maybe you have any ideas, thank you!

Have a nice day!

//edit: my code

- (IBAction)postToFacebook:(id)sender {
if([SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]) {
    SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];

    [controller setInitialText:@"First post from my iPhone app"];
    [self presentViewController:controller animated:YES completion:Nil];
}

}

Answer 1

Just remove this check:

[SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]

Here is how your code should look like:

- (IBAction)postToFacebook:(id)sender {
    SLComposeViewController *controller = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];

    [controller setInitialText:@"First post from my iPhone app"];
    [self presentViewController:controller animated:YES completion:Nil];
}

Apparently if you are not logged into Facebook (Settings -> Facebook) then it will return false on the iPhone but returns true on Simulator.